1 - IS2 rear armor should be nerfed to bring the disparity between mediums and heavies into line. However other future changes might mitigate this.
2 - An IS2 shot will never bounce at any range on a StugE. Also, there is no side armor in this game.
3 - There is no such thing as side armor. A Panther will always penetrate the rear armor of an IS2, at all ranges. IS2s are super overpowered though, not defending the IS2, just the fact that you choose to mention this as an example of bad RNG. It's not.
4 - Mark Target does not have any affect whatsoever on penetration.
5 - Repeated abandons are funny, but yes, stupid.
6 - There is no RNG that goes into Grenades. They do fixed damage over the area, decreasing from the center of the explosion. It all depends on where the grenade is aimed and how much the squad is clumped up, and what cover they're in. No RNG.
7 - See above, no RNG with grenades.
8 - You're correct, flame crits are dumb.
9 - Rear armor on heavies is way too high across the board.
A lot of what you're mentioning aren't really good examples of bad RNG. Relic can take many easy steps to fix bad RNG, while keeping good RNG in the game.
1. I know the game only renders rear armor and front armor, yet it bounced from the side, what should have been coded as rear armor since it isn't front armor. Rear armor is done horrible in the game yeah.
2. I understand the disbelief, yet it did, the STUG-E was vet 3, had the skirtzen
3. The tiger I spoke about had a slither of healt left, 1 penetration away from death. It defeated both t34-85s after mark target ended.
4. Grenades still feel like rng for me...